NMLP P-000435 · True-first precedence · minted 2026-07-04

Sad Cypress

Agatha Christie · William Collins (Crime Club) · 1940

The UK Collins Crime Club edition (March 1940) is the true first; the US Dodd, Mead edition (September 1940) is the American first of the same year and is set from different type.

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New Mexico Literacy Project — True-first precedence NMLP P-000435 for "Sad Cypress" by Agatha Christie (https://newmexicoliteracyproject.org/id/point/p-000435, CC BY 4.0, dataset DOI 10.5281/zenodo.21184548).